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Transceiver, TDM switch, Codec, Operational amplifier, Clock generator
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§dgeii)) Le75181 Ringing Access Switch VE750 Séries APPLICATIONS ■ Central office ■ DLC ■ PBX ■ DAML ■ HFC/FITL FEATURES ■ Small size/surface-mount packaging ■ Monolithic IC reliability ■ Low impulse noise ■ Make-before-break, break-before-make operation ■ Clean, bounce-free switching ■ Low, matched ON-resistance ■ Built-in current limiting, thermal shutdown, and SLIC protection ■ 5 V only operation, very low power consumption ■ Battery monitor, all OFF state upon loss of battery ■ No EMI ■ Latched logic level inputs, no drive circuitry ■ Only one external protector required ■ TTL logic control compatible ■ Default power up state RELATED LITERATURE ■ 081123 Le75282 Dual Intelligent Line Card Access Switch Data Sheet ■ 081126 Le75183 Line Card Access Switch Data Sheet ■ 080754 Le58QL061/063 QLSLAC Data Sheet ■ 080676 Le5711 Dual SLIC Data Sheet ■ 081047 Le5712 Dual SLIC Data Sheet DESCRIPTION The VoiceEdge™ family VE750 series of Line Card Access Switches (LCAS) is a family of monolithic solid-state switches that is designed to provide both power ringing access and test access on the analog line card. These devices, while not a pin-for-pin replacement for the traditional electromechanical relay (EMR) solution, provide the equivalent switching functionality. The VE750 series LCAS is meant as a solid-state alternative to the EMRs. The Le75181A/B device is pin-for-pin compatible with Zarlink's L7581A/B device, and the Le75181C device is pin-for-pin compatible with Zarlink's L8581A device. Zarlink also offers a range of compatible SLIC devices and codec/filters that can be used with the VE750 series LCAS for complete line card solutions that can be used worldwide in analog line card applications. BLOCK DIAGRAM Le75181A/C :GND VBAT TBAT RBAT TLINE RLINE rRINGING RRINGING VDD LATCH INPUT TSD DGND Le75181B FGND VBAT ORDERING INFORMATION TBAT RBAT Device Package Type1 Packing2 LE75181ABSC LE75181BBSC LE75181CBSC 16-Pin SOIC, GULL (Green) Tube TLINE RLINE TRINGING RRINGING LATCH 1. The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. 2. For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number) when placing an order. VDD INPUT TSD DGND Document ID# 081105 Date: Sep 18, 2007 Rev: E Version: 2 Distribution: Public Document
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